Winkhaus N-tra 45/55 Cylinder Lock Nickel Class 6.2 C Anti-Drill 5 Paracentric Keys

Product Overview

The Winkhaus N-tra 45/55 nickel-finish cylinder lock is designed for residential and commercial door security projects that require certified hardware with enhanced anti-manipulation and anti-drill protection. This Class 6.2 C certified cylinder features a patented paracentric key profile, delivered with five horizontally-milled keys and an extended key head for compatibility with safety escutcheons. Stainless steel construction of critical parts ensures durability for high-frequency use in apartment buildings, office complexes, and institutional environments.

Distinctive for its combination of 6 roller pin tumblers per side and up to 8 horizontal, springless blocking elements, the N-tra 45/55 delivers advanced picking resistance beyond typical market cylinders. This configuration minimizes procurement risk for facility managers and security contractors seeking measurable upgrade to mechanical door access control. It's particularly suited for bulk installations in multi-family dwellings or offices demanding patent-protected key duplication control through 2029.

Key Features

• 6 roller pin tumblers per side ? increases keying security and complexity


• Up to 8 horizontal springless blocking elements ? advanced resistance to manipulation


• Patented paracentric key profile ? key duplication protected until 2029


• Anti-drill protection ? hardened stainless steel pins safeguard core from drilling attacks


• One-piece sintered steel cam ? reinforced with non-toxic anti-corrosion coating for longevity


• Extended key head 13 mm ? enables compatibility with high-security escutcheons


• Specially shaped core ? stabilizes key movement and improves entry reliability

Technical Specifications

• Cylinder Size: 45/55 mm (total length 100 mm, 45 mm internal/55 mm external)


• Material: Nickel finish, stainless steel blocking elements


• Certification: Class 6.2 C


• Number of Keys Supplied: 5


• Key Profile: Paracentric, patented


• Key Head Length: 13 mm


• Cam Design: One-piece sintered steel, anti-corrosion coating


• Code Card Included: Yes


• Mounting Screw Included: Yes

Applications

Widely used in entrance and interior doors of residential buildings, offices, and institutional facilities requiring certified security hardware. Compatible with high-security escutcheons and suited for facility management, property developers, and bulk procurement for multi-unit housing. Meets requirements for doors demanding anti-drill, anti-manipulation, and controlled key duplication.

Packaging & Shipping

Each cylinder lock is supplied in a sealed box to ensure integrity and functionality, including 5 keys, code card, and mounting screw. Standard export packaging with tamper-evident seals for bulk and OEM shipments.